﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Demo01
{
    class chongwushangdian
    {
        public void  jiyangchongwu(dongwu a)
        {
            a.chi();
            a.shui();
            a.dong();
            a.jiao();
        }
    }
}
